Earth's core is made up of mostly what?

a.) silicate materials

b.) magnesium and iron

c.) iron and nickel

d.) light elements like hydrogen

What two regions were ceded (given over) to France in exchange for independence of northern and central Italy? A) Naples and Savoy B) Naples and Sicily C) Nice and Sicily D) Nice and Savoy

What kind of eruption-quiet, explosive, or both at different times-would you expect from each volcano shown?

Which features do political maps show

Name 5 facts that prove the Earth is round

Convert 5 radians to degrees.

What is a theodolite?

What is the longest to river n texas

What's the difference between an escarpment and a cliff?

Where are most the world's migrants moving to? Where are they coming from?

How do oceanographers measure the salinity of ocean water? A. by measuring the density of the water B. by measuring the depth of the water C. by measuring the conductivity of the water. D. by measuring the amount of marine life present